135244-62-1 2-Piperidinone, 1-(7,8-dihydro-7-hydroxy-6,6-dimethyl-6H-pyrano(2,3-f)-2,1,3-benzoxadiazol-8-yl)-, trans-(+)- 7,8-Dihydro-6,6-dimethyl-7-hydroxy-8-(2-oxo-piperidin-1-yl)-6H-pyrano(2,3)benz-2,1,3-oxadiazole NIP 121 Nip-121